Sometimes there are mistakes, but do not look back. You will not change anything. It is better to assume that you made the right decision, even if you got a loss.
To move forward, you need to learn from the mistakes that were made before, so as not to repeat them in the future.
We can allow ourselves to make same mistakes over and over again. When you make a mistake don`t forget it, learn from it and
make sure to not repeat the same mistake again, it`s how we can make progress.
If you look back you can notice that we lost big opportunity to buy some main coins under the price. Now years later prices are
higher than 5 years ago, in 5 years from now prices will be higher too, don`t miss another chance.
This is the wrong position, as making a mistake it is necessary to carefully analyze (study) to avoid similar in the future. If a person makes the same mistakes all the time it means that he is not developing and his progress is stalled.